Relative performance of neem coated urea (NCU) on Nutrient uptake and Nitrogen use efficiency of rice ( Oryza sativa L) in Vertisol

Abstract

A field experiment was carried out during the Kharif season (June–October) of 2016 at the Research Farm of the Indira Gandhi Agricultural University, Raipur (C.G.), India to study the Response of applied neem coated urea (NCU) on nutrient uptake and nitrogen use efficiency of rice (Oryza sativa L) in Vertisol. The experiment was laid out in a Randomized block design with three replications and eight treatments namely i.e. 100 % PU (3 splits), 75 % NCU (3 splits), 100 % NCU (3 splits), 125 % NCU (3 splits), 100 % NCU (full basal), 100 % NCU (2 splits 50%+50%), 100 % NCU (2 splits 75%+25%) and Control (No P60 K40). The results obtained in this study showed that the T4-125% Neem coated urea performed significantly better than the other treatments in nutrient uptake (103kg ha-1N, 18.8 kg ha-1 P, 190 kg ha-1K) and nutrient use efficiency 35.88% of rice.